ep.4 The Mad Flow of Time and Zein's Identity

This article is about an episode in Kamen Rider Outsiders.

ep.4 The Mad Flow of Time and Zein's Identity
Kamen Rider Outsiders, Episode 4
Air Date	TTFC: October 1, 2023
Production Information
Writer(s)	Daiki Nagahama (supervised by Yuya Takahashi)
Director	Takayuki Shibasaki
Episode Guide
Previous	ep.3 The Battle Fight Resumes and Zein's Birth
Next	ep.5 Goddess of Genesis and the Third Singularity

ep.4 The Mad Flow of Time and Zein's Identity (ｅｐ.４　狂った時の運行とゼインの正体, Episōdo Fō Kurutta Toki no Unkō to Zein no Shōtai) is the fourth episode of Kamen Rider Outsiders, and the fifth overall. It features the debut of Kamen Rider Garren's King Form, Yuto Sakurai's first on-screen transformation into Kamen Rider Zein, and the first reveal of Zein's voice.

Continuity and Placement

• This episode takes place after ep.3 The Battle Fight Resumes and Zein's Birth

Synopsis

The world is divided between Kamen Rider Zein, who has learned good intentions and can use the powers of all Kamen Riders to eradicate evil, and Kamen Rider Outsiders, who were revived by Foundation X in an attempt to stop him. Brain, who was revived as an Outsider along with Bronzedrive, resonates his beliefs with those of Yuto Sakurai, who is Kamen Rider Zein and was once Kamen Rider Zeronos. Sakuya Tachibana activates the Zein Driver and attempts to launch Kamen Rider Chronicle to the public for the cause of "eradicating evil", but...

Plot

to be added

Characters

Kamen Riders

Kamen Rider Garren	Sakuya Tachibana
Kamen Rider Zein	Yuto Sakurai
Kamen Rider Brain	Brain
Kamen Rider Ark-Zero	Ark/Horobi

Allies

• Nico Saiba
• George Karizaki

Villains

Foundation X

• Ecole
• Tenjuro Banno

Others

• Zein

Cast

• Sakuya Tachibana (橘 朔也, Tachibana Sakuya): Hironari Amano (天野 浩成, Amano Hironari)
• Yuto Sakurai (桜井 侑斗, Sakurai Yūto): Yuichi Nakamura (中村 優一, Nakamura Yūichi)
• Brain (ブレン, Buren): Shota Matsushima (松島 庄汰, Matsushima Shōta)
• Horobi (滅, Horobi): Syuya Sunagawa (砂川 脩弥, Sunagawa Shuya)
• Nico Saiba (西馬 ニコ, Saiba Niko): Reina Kurosaki (黒崎 レイナ, Kurosaki Reina)
• George Karizaki (ジョージ・狩崎, Jōji Karizaki): Noritaka Hamao (濱尾 ノリタカ, Hamao Noritaka)
• Bronze Drive (ブロンズドライブ, Buronzu Doraibu, Voice): Masakazu Morita (森田 成一, Morita Masakazu)
• Ark (アーク, Āku, Voice): Show Hayami (速水 奨, Hayami Shō)
• Ecole (エコル, Ekoru): Yamato Furuya (古谷 大和, Furuya Yamato)
• Zein (ゼイン, Voice), Zein Driver (ゼインドライバー, Zein Doraibā, Voice): Toru Okawa (大川 透, Ōkawa Tōru)
• Kuroto Dan (檀 黎斗, Dan Kuroto, Voice): Tetsuya Iwanaga (岩永 徹也, Iwanaga Tetsuya)

Suit Actors

• Kamen Rider Zein: Kenya Saitou (齊藤 謙也, Saitō Ken'ya)
• Kamen Rider Ark-Zero: Yasuhiko Imai (今井 靖彦, Imai Yasuhiko)
• Kamen Rider Brain: Masashi Takada (高田 将司, Takada Masashi)
• Kamen Rider Garren: Yoshifumi Oshikawa (押川 善文, Oshikawa Yoshifumi)

Forms and Collectibles Used

Zein Cards

• Card used:
  • Kamen Rider Zein
    • Kamen Ride: Blade King Form

Rouse Cards

• Card Used:
  • Kamen Rider Garren
    • Absorb Serpent (in King Absorber), Evolution Giraffa (in King Absorber and King Rouzer), Evolution Tarantula (in King Rouzer), Evolution Paradoxa (in King Rouzer), Evolution Caucasus (in King Rouzer), Change Stag (in King Rouzer)
• Card Ability/Attacks used:
  • Kamen Rider Garren
    • Four of a Kind

Errors

• When Garren King Form inserts the four Category King cards and Change Stag into his King Rouzer, the Evolution Caucasus card is shown in its Gild state despite not being used by Blade.
  • Additionally, while the text on the side of the prop versions of the Change Stag and Evolution Giraffa Gild Rouse Cards is red, this text is blue like Blade's Gild Rouse Cards on the projections accompanying Garren's Four Card finisher.

Evolution Caucasus card is shown in its Gild state

Blue text is shown on the projections of the cards

Notes

Outsiders Closing Screens

• Count at episode end:
  • Progrisekeys in Zein's possession: Kamen Rider Zein
  • Progrisekeys in Horobi's possession: Sting Scorpion

The deleted Kamen Rider Brain vs. Kamen Rider Zein fight scene

• A scene with Kamen Rider Brain fighting Kamen Rider Zein was filmed, as seen in the next episode preview of ep.4, but was cut from the episode for undisclosed reasons.
• Parts of Garren's helmet has continued to photodegrade from aging since Super Hero Taisen GP: Kamen Rider 3, deteriorating to a point where it looks not too dissimilar from Jack Form's helmet. Similarly, Garren's chest armor has also begun to show initial signs of discoloration as well.
• This episode marks the live-action debut of Garren's King Form. Another version of it appeared in a S.I.C. side story in 2015.
• The first visual of Garren's King Form was revealed on August 22, 2023, the 19th anniversary of the airing of the episode in which Garren's Jack Form debuted in Kamen Rider Blade.
• During Garren's transformation into King Form, the background briefly changes into a scene which homages the eye-catch at the beginning of every episode of Blade's original series.
• Despite Garren's King Form involving a fusion with only the Category King Undead, the transformation effect still features multiple cards fusing onto Garren's armor similar to Blade's King Form transformation. The difference however is that in Garren's case, all of the cards are copies of his own Category King card.